Alkyl phenol sulfonic polyoxyethylene ether sulfate and preparation thereof

A technology of alkylphenol sulfonic acid polyoxyethylene ether and sulfate ester salt, which is applied in the direction of sulfonic acid preparation, chemical instruments and methods, and drilling compositions, etc., which can solve the problems of poor oil displacement efficiency, high production cost, formation and Oil well damage and other problems, to achieve the effect of enhanced oil recovery

Active Publication Date: 2008-10-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] One of the technical problems to be solved by the present invention is that the oil displacement agent containing surfactant in the prior art has poor oil displacement efficiency under high temperature and high salinity conditions, and at

Method used

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  • Alkyl phenol sulfonic polyoxyethylene ether sulfate and preparation thereof
  • Alkyl phenol sulfonic polyoxyethylene ether sulfate and preparation thereof
  • Alkyl phenol sulfonic polyoxyethylene ether sulfate and preparation thereof

Examples

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Example Embodiment

[0033] [Example 1]

[0034] Synthesis of sodium nonylphenol sulfonate polyoxyethylene (5) ether sulfate

[0035] (1) Add 110 grams of nonylphenol and 1.5 grams of calcium oxide catalyst to the reactor equipped with condensing device, stirring device and gas disperser. When heating to 135°C while blowing nitrogen, add 10% nonylphenol by weight Of water, stirred for 1 hour. Then the water was first distilled at normal pressure, and then under reduced pressure under a vacuum of 20 mmHg, the water was evaporated at 140°C for 20 minutes, the solution was cooled to 80°C, and the theoretical acid content of the neutralization catalyst was slowly added dropwise to 20 (weight )% concentrated sulfuric acid, heat the system temperature to 85~90℃, turn on the vacuum system, dehydrate under high vacuum for 1 hour, purge 3~4 times with nitrogen to remove the air in the system, and then adjust the system reaction temperature to Slowly pass in 112 grams of ethylene oxide at 150°C for alkoxylation...

Example Embodiment

[0039] [Example 2]

[0040] Synthesis of sodium dodecyl phenol sulfonate polyoxyethylene (10) ether sulfate

[0041] (1) Add 131 grams of dodecylphenol and 1.8 grams of calcium oxide catalyst to a reactor equipped with a condensing device, a stirring device and a gas disperser. When heating to 135°C while blowing nitrogen, add dodecyl 10% water by weight of phenol, stirred for 1 hour. Then the water was first distilled at normal pressure, and then under reduced pressure under a vacuum of 20 mmHg, the water was evaporated at 140°C for 20 minutes, the solution was cooled to 80°C, and the theoretical acid content of the neutralization catalyst was slowly added dropwise to 20 (weight )% concentrated sulfuric acid, heat the system temperature to 85~90℃, turn on the vacuum system, dehydrate under high vacuum for 1 hour, purge 3~4 times with nitrogen to remove the air in the system, and then adjust the system reaction temperature to 150 ℃ slowly introduced 222 grams of ethylene oxide for...

Example Embodiment

[0045] [Example 3]

[0046] Synthesis of Octylphenol Sulfonic Acid Polyoxyethylene (10) Ether Sulfate Triethanolamine Salt

[0047] (1) Add 98 grams of octylphenol and 1.2 grams of calcium oxide catalyst to a reactor equipped with a condensing device, a stirring device and a gas disperser. When heating to 135°C while blowing nitrogen, add 10% by weight of octylphenol Of water, stirred for 1 hour. Then the water was first distilled at normal pressure, and then under reduced pressure under a vacuum of 20 mmHg, the water was evaporated at 140°C for 20 minutes, the solution was cooled to 80°C, and the theoretical acid content of the neutralization catalyst was slowly added dropwise to 20 (weight )% concentrated sulfuric acid, heat the system temperature to 85~90℃, turn on the vacuum system, dehydrate under high vacuum for 1 hour, purge 3~4 times with nitrogen to remove the air in the system, and then adjust the system reaction temperature to 150 ℃ slowly introduced 223 grams of ethyle...

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Abstract

The invention relates to alkylphenol sulfonic polyoxyethylene aether sodium sulfovinate and the preparation method thereof, mainly aiming at solving the problems that current oil displacement agent containing surfactant is poor in oil displacement efficiency under high temperature with the existence of high salt and that the oil displacement agent contains alkali and causes damages to the stratum and the oil field and erodes the equipment and the pipes, which results in high production cost. The invention adopts alkylphenol sulfonic polyoxyethylene aether sodium sulfovinate with general molecular formula (I)to solve the problem; wherein M is alkali metal, ammonium group or amidocyanogen; R is alkyl from C1-C22; n is any integer from 1 to 30. The alkylphenol sulfonic polyoxyethylene aether sodium sulfovinate can be applied to the production of tertiary oil recovery in oil fields.

Description

technical field [0001] The invention relates to an alkylphenol sulfonic acid polyoxyethylene ether sulfate and a preparation method thereof. Background technique [0002] The main oilfields in my country have entered a period of high water cut after primary and secondary extraction, and crude oil production has declined year by year. In order to improve crude oil recovery and maximize the development of remaining reserves, tertiary oil recovery technology has played a very important role in ensuring stable and high production of oil fields . Among them, the ASP flooding (alkali-polymer-surfactant) technology using surfactant can greatly improve the oil displacement efficiency in the case of low surfactant dosage, so it has become economically and technically important. A very successful new technology for enhanced oil recovery. The main mechanism is: after the oil field enters the high water cut period, the remaining oil is trapped in the pores of the reservoir rock in a di...

Claims

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Application Information

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IPC IPC(8): C07C309/42C07C303/02C09K8/584
Inventor 陈荣福沙鸥张卫东
Owner CHINA PETROLEUM & CHEM CORP
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